Hydraulic coupling.



Patented May 15, I900. T. C. PROUTY. HYDRAULIC COUPLING.

(Application filed Aug. 15, 1899.)

2 Sheets-Sheet I.

(No Model.)

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No. 649%76. Patented May l5, I900. T. D. PROUTY.

HYDRAULIC COUPLING. (Application filed Aug. 15, 1899.) (No Model.) 2Sheets-Sheet 2.

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NTTE STATES PATENT EFIcE.

HYDRAULIC COUPLING.

' SPECIFICATION forming part of Letters Patent No. 649,476, dated May15, 1900. Application filed August 15, 1899. Serial No. 727,255. (Nomodel.)

To all whom, it may concern:

Be it known that I, THEODORE O. PROUTY, a citizen of the United States,and a resident of Midland, county of Midland, and State of Michigan,have invented a new and useful Improvement in Hydraulic Couplings, ofwhich the following is a specification, the principle of the inventionbeing herein explained and the best mode in which I have contemplatedapplying that principle so as to distinguish it from other inventions.

The object of my invention is to provide an effective self-sealingcoupling for connecting the ends of hose or other pipe; and it consistsof means hereinafter fully described.

The annexed drawings and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting but one of various forms in which the principle of theinvention may be used.

In said annexed drawings, Figure I represents a partial sectional Viewof my improved coupling and a portion of two hose or other pipe to whichthe respective members of said coupling are secured, illustrating theparts when coupled together. Fig. II represents an elevation of the malemember of my improved coupling detached from the hose or pipe. Fig. 111represents a similar view of the female member similarly detached. Fig.IV represents an elevational view of the said coupling, illustrating theposition of the two members before the fluid is permitted to passthrough; and Fig. V represents a similar view showing the relativepositions of the two coupling members during the flow of fluid underpressure through the coupling.

The male member A is provided with a nipple a, on which are formed orsecured two lugs a, together with a suitable portion a which may besecured to the desired water connection. The female member is providedwith two slots 1) of angular formation, which are adapted to receive thelugs a of the male member, and thereby secure the two members againstlongitudinal displacement, as is readily understood. Each of said slotsZ) is formed with a recessed portion h in the direction of the axis ofthe coupling, thereby causing the width of the slot at such portion tobe slightly greater than the width of the lug a. The

female member is provided with a shoulder b upon which rests the flangec of a tubular packing-ring O entirely within said female member, Fig.I, said flange being secured on said shoulder by. means of a threadedglandnut 13. Said packing-ring is located coaxially with the femalememberand is of inner diameter substantially equal to the outer diameterof the nipple a. When the two members are joined as shown in Fig. I, thesaid nipple projects through the packing-ring into the female member andforms an annular open space (1, which is in direct communication withthe fluid-duct, and hence permits the end surface of the tubular portionof said packing to also be in direct communication with or to form apart of the walls of the duct. The fluid under pressure in attempting topass through the joint formed by this connection by way of the tubularpacking forces itself between the cylindrical surfaces of said packingand the contiguous surfaces of the male and female members,respectively. Such passage is not prevented at that surface contiguousto the male member, but is prevented at the contiguous female surface bythe gland-nut B, said nut sealing the end of said packing, as is readilyunderstood. The packing is thereby forced securely against the malemember, thereby securely sealing the joint and preventing absolutely anyescape of the fluid through the joint. \Vhen the two members are coupledand joined as shown in Fig. IV and the fluid under pressure is notpassing through the connection thus made, it is seen that the lugs a maybe caused to rest against the extreme surface of the slots; butupon theadmission of the fluid under pressure and the consequent pressureexerted in the direction of the coupling-axis the two members are causedto separate slightly, thereby inserting the lugs a in the depressionsZ), as shown in Fig. V, thereby locking the two members against rotativemovement.

The above construction permits the diameter of the packing to beslightly greater than the diameter of the-male member, therebypermitting the latter to be easily inserted even in cases whereobstructions in the form of refuse or other matter may have found theirway upon the inner surface of the packing.

Other modes of applying the principle of lowing claims be employe Itherefore particularly point out and distinctly claim as my invention 1.In a hydraulic coupling, the combination with a male and a femalemember, of means 10 for securing said two members against longitudinaldisplacement, said female member provided with a packingring of tubularform located entirely Within said female member and projecting from theinner surface there- I 5 of, said male member provided with a nipple ofan outer diameter substantially equal to the inner diameter of saidpacking and adapted to project into said female member and through saidpacking, substantially as set forth.

2. In a hydraulic coupling,the combination with a male and a femalemember, of means for securing said two members against longi tudinaldisplacement, said female member provided with a packing-ring of tubularformation located entirely within and coaxial with said member andformed with a flange, said male member provided with a nipple of anouter diameter substantially equal to the inner diameter of saidpackingring and adapted to project through said female member, thelatter member provided with an interior shoulder; and a gland-nut, saidpacking-ring flange secured between said nut and shoulder and thetubular portionof said ring projecting between and along contiguoussurfaces of the male and female members, substantially as set forth.

Signed by me this 1st day of August, 1899.

THEODORE O. RROUTY.

Attest:

J. (1. TURNER, A. E. MERKEL.

